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微積分應用問題

Two cars start moving from the same point. One travels south at 60 km/hr and the other travels west at 25 km/hr. At what rate is the distance between the cars increasing three hours later?A rectangle has its base on the x-axis and its upper two vertices on the curve of . Find the largest area of the rectangle(這題我算都是16). 不知道哪裡算錯 麻煩幫我解答..

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java rectangle c rectangle rectangle類別 sub rectangle matlab rectangle golden rectangle rectangle function rectangle light rectangle prism rectangle shaperectangle travels cars vertices curve distance

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